Map-cabinet.



T. H. COSTELLO,

MAP CABINET. lllllllllllllllllllll lllll e.

Patented July 17, 19277. If

ilhlfTEH l h l 1 s ra'rnwr orricn.

THOMAS H. COSTELLO, or CHICAGO, ILLJiNOIS.

MAP-CABINET.

and State of Illinois, have invented certain new and useful Improvements in Map-Cab? nets, of which the following is a specification.

My invention relates to cabinets in which a conslderable number of maps may be placed on a suitable rack for convenient ref erence. It is the custom for school use and in other places where many maps are so used to mount them upon spring rollers similar to those used for window shades and to journal the rollers one above the other on upright racks. When so mounted the maps are readily drawn down or replaced as desired but in such movement, unless extreme care is used, the maps are drawn over each other, thereby wearing and defacing them. In some cases a forwardly inclined case or cornice has been used, whereby the different map rollers have been extendedforwardly above the ones immediately below, thereby providing certain clearance. My improve ment provides means by which a series of maps may be mounted within a closed cabinet on a movable rack which is there normally retained by gravity, but which may be automatically inclined to free the maps when the door of the cabinet is opened. A complete dust free cabinet of conventional design may thus be provided while, when wanted for use, the maps may be placed in convenient position therefor and in such relation to'each other that the action of extending them or returning them to normal position will not deface or injure them.

The principles of my invention are illustrated in the drawings, in which- Figure 1 shows a front view of my improved map cabinet with the door turned downwardly to disclose the interior;

Fig. 2 is a sectional view on the line of Fig. 1, when the cabinetis closed.

Fig. 3 is a similar view showing the relation of the parts when the cabinet is opened Figs. 4 and 5 show one form of mutually engaging device in the positions corresponding to Figs. 2 and 3;

Figs. 6 and 7 show of engaging devices.

Further describing my invention with ref erence to the drawings, inv which e charviews of other forms Specification of Letters Patent.

Patented July 1'7, 1917..

Application filed February 21, 1916. Serial No. 79,710.

acters of reference denote like parts through out: 1 and 2 are the ends, 3 the back, and 4 the bottom board of a map cabinet. The top.

5 is extended forwardly to form a cornice 6, under which the door? may be received and secured by a'catch 8 or other suitable means;

The said door should be hinged at 9 to the baseboard 4, so that when opened it may turn downwardly and hang free in the position shown in Figs. 1 and 3. A map rack having the end pieces 10 and 11 has the lower part thereof pivoted adjacently to their forward edges at 12 to a positive abutment, this as shown, being the lower portion of the cabinet. Such pivoting permits the map rack to be folded to a position in which it will be overbalanced within by gravity as shown in Fig. 2 or to be turned forwardly ina slanting position as shown in Fig. 3, in which position it'is held by means of the slotted links 14 the ends of which are attached respectively to the ends of the cabinet and of the map rack. The two ends of themap rack are connected by a top piece 15 on the front edge of which is provided an upwardly projecting tongue or pin 16. On the inside of the door is provided. a loop 17, so placed with reference to the pin 16' that, when the door is raised from the position shown in Fig. 3, into contact with the map rack, the pin and loop will take respectively the positions shown in Fig. 5. hen the door is further closed, pushing the map rack into place, the pin and loop will be moved into engagement as shown in Fig. 4, and will so remain until it is desired to openthe cabinet. As the door is opened the engagement of the pin and loop causes the rack to be drawn forward on the pivot 12 until its weight overbalances. It will then fall to the operative position, where it is supported by the links 14. But at this point or before, the turning of the door on the hinge pivot 9 will cause the pin 16 to be withdrawn from the loop 17, thus freeing the door and permitting it to be completely-openedto disclose the map rack.

An alternative form of engagement between the map rack and the door is illustrated in Fig. 6, in which a hook 20 may be attached to the face of the door in such positionthat it will engage the pins 21 on the end pieces of the rack. Other forms of engagement and disengagement may be proa door hinged to the case and forwardly and vided, but any equivalent construction in i InFig. 7 is shown a device which may be substituted for that shown in Figs. 1 and 5,

. a yielding latch 17 replacing thestationary loop 17."

I'clann: p r v v 1. In a map cabinet: a rigld abutment, a

map rack hinged thereto, a door hinged to a said abutment in differential relation to said =map rack, and mutually related devices on- I said door andon said rack adapted to en gage with each other as the door is closed and to bedise'ngaged during'thedoor opening movement.

. differential relation to said map rack, and

mutually related'devices on said door and on said rackadapted to-engage with each other as the door is closed and to be disengaged during the door opening movement. V

8L-In amap cabinet; a case, a map rack pivoted at its lower part within the case and 1 forwardly inclinable therefrom, means for limiting the forward inclination of said rack,

- downwardly turnable therefrom, and mu- "tually related devices on said'door and rack- "adapted for engagement with each other when the door is closed and to be disengaged from ieach other during the opening move-- ment of said door. r 4. In a map cabinet; a case, a map rack.

pivotedat its'lower part within the case and forwardly inclinable therefrom, means for.

limiting" the forward inclinagtion of said rack, a door hinged to the case and forwardly and downwardly turnable therefrom, and relatively yielding and rigid deviceson said door and rack adapted for engage ment when the door is closed and to be dise'ngagedfrom each other during the open- .ing movement of said door.

5. In a map cabinet; a case, a map rack 1 for limiting the forward inclination of-said :rack, a door hinged t the case and fori wardly and downwardly turnable therefrom,

a-rigid striker plate ,on'isaid rack and a hook 2. In a map cabinet; a case, a map rack hinged therein, a door hinged to said case in.

door and rack will have diiferential movement, and related means on. the rack and door for engagement and disengagement by said differential movement.

7. In a map cabinet;- a case, a map rack pivoted within the case adjacent to one side thereof, a door to close over said rack pivoted tothe same sideof the case, so .that .when simultaneously actuated they will move in arcs of different circles, and means-carried :by said rack and ,door whereby they will be engaged :by the closing and disengaged by the opening movement of the door.

:8. In a map cabinet; thecombination with a relatively stationary abutment, of .a .map rack pivoted thereto at .a point forwardly vofand :below the center of gravity of-the map rack, whereby .wihen closed said rack noranally will be held in ;the closed position and means to connect the abutment and the map rack to limit the forward inclination of the latter.

be held in the closed position and means to connect the rack to the ease and limit the forward inclination of the said rack.

In witness whereof, I have hereunto sub seribedmy name this 17th day of lflebruary, 1916, in the presence of two subscribing witnesses. V

THOMAS CO.''IELLO.

I'Vitnesses R. S. CHAMBERLAIN, A. S. PHILLIPS.

- copies 9! this patentmay be obtained for une eents each, by addressing {the Commissioner of Patents,

Washington, D. C. 

